The song and dance from your childhood is making a comeback thanks to Pinkfong, a South Korean children’s edutainment company that creates music, videos, stories and more for a global audience. Along with the “baby shark, doo doo doo doo doo doo” ditty, the video includes fun and easy hand choreography.

Like everything these days, the dance is now a “challenge” (which is simply to do the dance), and kids can’t get enough of it. Pinkfong’s animated and live-action video featuring two adorable and enthusiastic children has over 1.6 billion views on YouTube.

The song was always a hit with the camp crowd, but it was never this inescapable. That has something to do with social media, but it also could be because Pinkfong’s version is less gory. In the original song, someone “lost an arm” and died because of a failed CPR attempt, but in this new saccharine version, everyone’s safe. So, maybe parents mind it less now that it’s not so potentially traumatizing.

Even celebrities are jumping on the “Baby Shark” bandwagon.

Kylie Jenner captioned an Instagram post with the lyrics, but instead of doing the challenge, she just struck a glamorous pose. Her sister Khloe Kardashian commented on the post, “Omg yes!!!! Baaaaaby shark!!!!! Dooo dooooo. Wow we really are moms aren’t we?!?!”

One of our clients is in hospital and said that she didn't want a get well card. Instead she wanted to see the class do Baby Shark…so how could we say no? But we made it go faster! #BabySharkChallengepic.twitter.com/m6JH1tv9qu

The colorful video was published in 2016, went viral in Indonesia in 2017, and racked up 700 million views in its first year, but it’s only now making major waves (pun intended) in the Western Hemisphere.